Messages, calls, voice notes and live location — sealed on your device before they leave. No phone number, no email, no tracking, no ads.
Most messengers make a phone number — usually an email address as well — the price of entry. That is not a formality. It is the moment a private conversation becomes a searchable profile — and the reason those apps can be made to hand over your social graph, while there is nothing here to hand over.
The trade is real: one lookup finds everyone you know, which is exactly why the number is convenient. It is also precisely the surveillance surface — and it belongs to whoever holds the number, not to you.
One number sits at the centre of everything. It only has to be handed over once.
What the trade actually costs, measured
No phone number, no email, no signup — so there is no identifier to leak, no account to look you up by, and no profile to hand over.
Every chat is sealed on your device. The server that delivers messages holds only ciphertext.
Voice and video with the same protection, over our own infrastructure — no third-party call servers.
Waveform voice messages and a voice changer with presets when you'd rather not be recognized.
Share where you are for 15 minutes, an hour, or a whole evening — stop anytime. Nothing runs in the background.
Open the app and you're in. No phone number, no email, no personal details — your username is your identity.
Small-group chats with delivery receipts, replies and everything encrypted the same way.
Real captures from the release build — dark and light, exactly as the phone draws them.
No analytics. No directory of users. No data selling. Crash reports are the only diagnostic, they go to our own servers, and our privacy policy lists exactly what exists. Independent, self-funded, answerable to users — not advertisers.
It just works — the voice notes with the waveform and the voice changer are my favourite part.
Live location for 15 minutes and then it's gone. Exactly how it should work.
No. The app creates a username for you the first time you open it. That username is your whole identity — nothing else is asked.
No. Messages are encrypted on your phone before they leave it. Our servers store and forward ciphertext only; they hold no key.
The username, delivery metadata needed to route messages, a crash report if the app crashes, and a push token on the Play build. The privacy policy lists all of it — and nothing more exists.
Yes. No ads, no subscriptions, no tracking.
On Google Play, or as a direct APK from sonarchat.xyz. Both are signed with the same key.